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- Title
Effect of Binary/Ternary Fatty Acids Ratio and Glycerin on the Phase Behaviors of Soap Solutions.
- Authors
Li, Fangfang; Chen, Minghua; Zhang, Wanping
- Abstract
Phase behaviors of liquid soaps prepared with single myristic acid, binary fatty acid mixtures and ternary fatty acid mixtures (with 30% total fatty acids) are described. The influence of glycerin on the phase behaviors of ternary soaps is discussed. Phase behaviors were characterized by combining pH, viscosity, polarization microscopy, X-ray scattering and differential scanning calorimetry (DSC) analysis. The results showed that the kind and proportion of fatty acids played key roles in the phase behaviors of soaps. Glycerin had a significant influence on the phase behaviors of soaps. Liquid and Cub + Hex (cubic and hexagonal phase) phase were stable, while Liq + Crystal (liquid micelle and crystal phase), Liq + Lam (liquid micelle and lamellar phase), Liq + Hex + Lam (liquid micelle and hexagonal and lamellar phase) phases displayed separation regions, Glycerin was investigated to improve the stability of separation phases for two weeks, appropriate percentage of the fatty acids in soaps application. Graphical Abstract:
- Subjects
FATTY acid derivatives; GLYCERIN analysis; X-ray diffraction measurement; LIQUID crystals; DIFFERENTIAL scanning calorimetry; SOAP; MATHEMATICAL models
- Publication
Journal of Surfactants & Detergents, 2017, Vol 20, Issue 2, p425
- ISSN
1097-3958
- Publication type
Article
- DOI
10.1007/s11743-017-1927-y